Investigation on Fatigue Performance of TC4 Alloy by Laser Shock Processing with Different Processing Parameters

Abstract:

In the present investigation, the effects of processing parameter on three-point bending fatigue pergormance of TC4 alloy are examined, particular emphasis is devoted to the question of appropriate LSP processing parameters for improving the fatigue properties. Based on cyclic deformation and stress/life (S/N) fatigue behavior, it was found that there was the optimal shock number of overlapped spots for three-point bending fatigue pergormance of TC4 alloy. By comparing with the as-received specimen, the fatigue performance of TC4 alloy has the most obvious improvement by LSP with two impacts.

• Periodical: Key Engineering Materials (Volume 464)
• Pages: 552-555
• DOI: https://doi.org/10.4028/www.scientific.net/KEM.464.552
• Online since: January 2011
• Authors: Kai Yu Luo, Feng Ze Dai, L. Zhang, J.W. Zhong, Hai Bing Guan
• Keywords: Fatigue Life, Laser Shock Processing (LSP), Processing Parameter, TC4 Alloy

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